<template>
    <el-container class="home-container">
      <!--头部-->
      <el-header>
        <div>
          <img src="../assets/logo.png" alt="">
          <span>后台管理系统</span>
        </div>
        <el-button type="info" @click="logout">退出登录</el-button>
      </el-header>
      <el-container>
        <!--侧边-->
        <el-aside width="200px" >
          <!--侧边栏菜单-->
          <el-menu
            :default-active="activePath"
            router
            :collapse="isCollapsed"
            :collapse-transition="false"
            background-color="#333744"
            text-color="#fff"
            active-text-color="#409bff">
            <!--一级菜单-->
            <el-submenu
              :index="item.id + ''"
              v-for="item in menulist"
              :key="item.id">
              <!--一级菜单模板-->
              <template slot="title">
                <!--图标-->
                <i class="iconfont icon-user"></i>
                <!--文本-->
                <span>{{item.authName}}</span>
              </template>
              <!--二级菜单-->
              <el-menu-item
                v-for="subItem in item.children"
                :key="subItem.id"
                @click="saveNameState('/'+subItem.path)"
                :index="'/'+subItem.path">
                <!--二级菜单模板-->
                <template slot="title">
                  <!--图标-->
                  <i class="el-icon-menu"></i>
                  <!--文本-->
                  <span>{{subItem.authName}}</span>
                </template>
              </el-menu-item>
            </el-submenu>
          </el-menu>
        </el-aside>
        <!--主体-->
        <el-main>
          <router-view></router-view>
        </el-main>
      </el-container>
    </el-container>
</template>

<script>
export default {
  name: 'Home',
  data () {
    return {
      menulist: [],
      // iconsObj: {
      //   // '103': 'iconfont icon-tijikonjian',
      //   // '101': 'iconfont icon-shangpin',
      //   // '102': 'iconfont icon-danju',
      //   // '145': 'iconfont icon-baobiao',
      //   '"125"': 'iconfont icon-user'
      // }
      // 折叠标记
      isCollapsed: false,
      // 激活标记
      activePath: ''
    }
  },
  methods: {
    logout () {
      window.sessionStorage.clear()
      this.$router.push('/login')
    },
    // 获取所有的菜单
    async getMenuList () {
      const { data: res } = await this.$http.get('menus')
      if (res.meta.status !== 200) return this.$message.error(res.meta.msg)
      this.menulist = res.data
    },
    // 保存激活状态
    saveNameState (activePath) {
      window.sessionStorage.setItem('activePath', activePath)
      this.activePath = activePath
    }
  },
  created () {
    this.getMenuList()
    this.activePath = window.sessionStorage.getItem('activePath')
  }
}
</script>

<style lang="less" scoped>
.home-container{
  height: 100%;
}
.el-header{
  background-color: #373D41;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-left: 0;
  color: #ffffff;
  font-size: 20px;
  img{
    height: 25px;
    width: 25px;
  }
  > div {
    display: flex;
    align-items: center;
    span {
      margin-left: 15px;
    }
  }
}
.el-aside{
  background-color: #333744;
  .el-menu {
    border-right: none;
  }
}
.el-main{
  background-color: #eaedf1;
}
.iconfont{
  margin-right: 10px;
}
.toggle-button{
  background-color: #4a5064;
  font-size: 10px;
  line-height: 24px;
  color: #ffffff;
  text-align: center;
  letter-spacing: 0.2em;
  cursor: pointer ;
}
</style>
